Controller Temperature - Levitronix BPS-2000.1 User Manual

3.4.2 Controller Temperature

Depending on the ambient temperature and the placement of the controller additional cooling may be
required (see Figure 24). To improve cooling of the controller, place the device into a moving air stream. If
the controller is mounted in a compact area or adjacent to additional heat sources (e.g. a 2
ensure that there is sufficient ventilation.
0
75
Absolute Temperature Limit
70
65
60
55
0
[ C]
50
45
High-Flow System
40
Pump Head LPP-2000.6
35
30
25
0
0 2
75
Absolute Temperature Limit
70
65
60
55
0
[ C]
50
45
High-Pressure System
Pump Head LPP-2000.7
40
35
30
25
0 10
Figure 24: Temperature curves of controller LPC-2000 vs. flow and speed
The above curves are measurements of the controller temperature at 25°C ambient. Equation (Eq. 2) shows
how to calculate the controller temperature for at other ambient temperatures based on this curve.

T ( T ) T ( T
   
C A C A
see Figure
PL-4021-00, Rev02, DCO# 15-235
5 10 15
20 40
4 6 8
20 30
(For pumping with pump head LPP-2000.6/7 and motor LPM-2000.2)
  
0 0
25 C ) ( T 25 C )
  
A
24
[gpm]
20 25
Ambient temp. = 25 C
Specific gravity = 1 g/cm
Viscosity = 0.7 cP
PWM Drive = 4.38 kHz
PWM Bearing = 17.51 kHz
Fan: Temp. Controlled
4000 rpm
60 80 100
[lpm]
[gpm]
10 12 14 16
10000 rpm
40 50
[lpm]

T Controller
C

T Ambient
A
User Manual for BPS-2000
www.levitronix.com
30 35
167
157
147
3
137
127
117
107
97
8000 rpm
87
77
120 140
18 20 22
Ambient temp. = 25 C
3
Specific gravity = 1 g/cm
Viscosity = 0.7 cP
PWM Drive = 4.38 kHz
PWM Bearing = 17.51 kHz
Fan: Temp. Controlled
9000 rpm
4000 rpm
60 70 80
temperatur e
temperatur e
nd
controller)
[°F]
167
157
147
137
127
[°F]
117
107
97
87
77
(Eq. 2)
22